What is the frequency of a wave with a wavelength of 3.20 x 10^10 hz
1) 9.38x10^-3
2)1.07x10^2
3)6.20x10^6
4)9.60x10^18

Which graph represents an even function?

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

The cost of a taxi ride includes an initial charge of $2.00. if a 5km ride cost $6.00 and a 10km ride cost $10.00, determine the cost of a 15km ride.